Jeffrey Sutton, 45, was shot inside his Metzger home just after 10:30 a.m. Thursday, according to the sheriff's office. Sutton was critically injured and he remains at OHSU Hospital in Portland.

A hospital spokesman said Sutton's current condition is not available. The sheriff's office has not released specific information about Sutton's injuries, including where and how many times he was shot.

Early Friday morning, authorities arrested the shooting's main suspect, Jeffrey Levi McGregor, 32, in Hillsboro after a day-long manhunt, said Sgt. David Thompson, a sheriff's office spokesman. McGregor, who is homeless, was arraigned on one count each of first-degree assault and unlawful use of a weapon Friday afternoon in Washington County Circuit Court. He is being held in the Washington County Jail.

Thompson last week said investigators are not disclosing a possible motive for the shooting, which occurred in the 7900 block of Southwest Taylors Ferry Road. McGregor is accused of shooting Sutton then running from the scene. Scarlett left around the same time, Thompson said. She and McGregor reportedly are acquaintances.

Sutton and Scarlett, Thompson said, lived together but had recently broken up.

Thompson said other people were in the home when the shooting occurred, but he didn't know who called 9-1-1. Sutton and Scarlett, he said, were not the only people who lived there.

Detectives are concerned that McGregor might have hidden the firearm used during the incident somewhere in the neighborhood as he fled, Thompson said, but he would not say what type of firearm investigators think was used.

Investigators are following leads on Scarlett's whereabouts, but are looking for more information from the public. Anyone with more information is asked to call the sheriff's office at 503-846-2500.